In Slumber Party Massacre III, a group of friends enjoying a slumber party on a beach are targeted by a psychopath wielding an electric drill as a weapon. As the night progresses, they must fight for their lives as the body count rises.

A group of high school girls have a slumber party, but their fun is cut short when a psychopathic killer wielding a power drill begins to hunt them down and murder them one by one.

Slumber Party Massacre II is a horror comedy that follows the story of a traumatized girl who has a nightmare about a driller killer. She joins a garage band and goes on a trip with them, but her nightmare becomes real when the killer starts targeting her and her friends. With catchy rockabilly music and unexpected twists, this movie delivers a unique blend of horror, comedy, and musical elements.